Nozzle-piezometer.



PATENTED MAY 7, 1907.

i' No. 852,581.

F. B. SANBORN. NZZLE PIEZOMETER.

APPLIGATION FILED sBPT.ze.19o5.

2 SHEETS-S EET PATENTED MAY 7, 1907.

F. B. SANBORN.

NOZZLE PIBZOMETER.

APPLICATION FILED sEPT.z8,19o5.

2 SHEETS-SHEET 2.

nam/6555.' AL/JW www# lexisting in pipes.

UNITED STATES FRANK B. sANBoRN, oF CAMBRIDGE, MASSACHUSETTS.

Specification of Letters Patent.

Patented May '7, 1907.

. Appueaioi mea sommaria-1905. serian). 280.543.

To all whom it may concern: y

Be it known that 1, FRANK B. SANBORN, a' citizen of the United States, vand a resident of Cambridge, in the county-of Middlesex and State of Massachusetts, have invented a new and Improved Nozzle Piezometer, of which the following is a specification.

My invention relates to devices for determining uid pressures and more particularly the pressure of water or force of streams flowing from nozzles,`and the static pressure Its principal obJects are to provide a device that will be light enough to be carried conveniently in the pocket, of simple design so that it can be quickly ap# plied to a flowing stream and, with a pressure gage or indicating means attached, show the l full available pressure afforded by the flowing stream, and also show the quantity of water thus being delivered. Furthermore the application of the device to the flowing stream should easily be accomplished even by oneunskilled and even without liability of getting wet by the broken streams of water or other 'luid. .An additional object of the invention is to afford a convenient means of determinn the static pressure at any hydrant or t e like. These objects are attained by the apparatus represented in the following drawings and hereafter described.

'Figure 1 is a longitudinal sectional elevation of one embodiment of my invention applied with va pressure gage or indicating means to a nozzle for measuring dynamic pressure. Fig. 2 is. a longitudinal sectional elevation of another embodiment of my invention applied to a nozzle for measuring 'static pressure. Fig. 3 is a top plan view of the device illustrated in Fig. 1 with the age removed. Fig. 4 is an end elevation loolgdng from the4 left-hand face of Fig. 1, the nozzle being omitted. Fig. 5 is a transverse sec-y tional detail on the line 5 5 of 2.

The body portion or supporting member 10 of the device is shown in Figs. 1 and 2. Associated with this body portion is the bent tube 11, the three-Way cock 12, the shield 13, and the gage or indicating means 14. The body ortion serves as a support for the gage and or the weight that may be su erimposed. Also it serves to form a shoulider which is placed in contact with the bead 16 of the nozzle and this contact together with a slight .pressure from the hand keeps the piezometer in place and l1elps to keep the proper alinement. The bent tube 11 has the form approximately as shown invFigs. 1 and 2. The Water from the nozzle 15 enters this tube and transmits the desired pressure lto the pressure gage or indicating means 14. At 12 1s a three-Way cock which permits (1) the passage from tube to gage to be open, or

(2) the passage from tube to connection 17 to be open, or (3) the passage from connection 17 to pressuregage to be open.

The curved shield 13 by its contactwith the bead 16 and the stream issuing from the nozzle resists movementto one side or another. This Shield also prevents water from issuing 'upward or backward. Similarly .to keep alinement and prevent splashing are the knife, edges or dividers 18 and 19. vThe thickness of these knife-edges or dividers increases from the edges 18 and 19 to the full size of the bent tube. Thus itgives a smooth passage for the water as it comes on at 19 and Hows off at 18.

The gage or indicating means 14, has

special graduations, which permits both the pressures and the quantity of discharge to be indicated. There are four concentric rows of figures on the dial face; one row represents pressures, and the other three rows represent thev discharges by different sizes of nozzles for corresponding pressures obtained by applying the nozzle piezometer to one of the sizes of nozzles represented.

17 is a connection with outside thread for the apparatus shown in Fig. 2. In this position the apparatus is in use for testing static pressure. Rubber or yieldable bushings 20 and 21-one or both being used according to the size of nozzle that is availabletaper gradually to conform to the bore of the nozzle, and they it closely on'a metal pipe. Back of these rubber or yieldable bushings is nut 23a which coperates with the thread 23 and prevents the pipe from being displaced bythe pressure of the fluid as it enters the nozzle, and forces through the three-way cock which is set as shown in Fig. 2 so that -the fluid pressure acts upon the gage which thus indicates the true static pressure.

v22 is a shoulder which acts when the apparatus needs to be driven out of the nozzle after a test is finished.

23 is a taper-threaded connection usually with or -inch pipe thread which enables the apparatus to be applied to a'hole ittedwith a corresponding thread as for instance in a hydrant. Pressure is thus obtained without the usev of a nozzle.

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- turned without the aid of. a wrench.

Thus itis seen thatthe whole apparatus serves (1') to obtain quicklythe effective pressurel of fluids flowing through a nozzle,

(2) likewise even the quantity of discharge for certain siz'es of nozzles, (3) the static pressure of fluids by inserting a portion of the device in a nozzle, or (4) the static pres- A leading to the indicating'means, said passages being maintained in different relations sure by applicationl to a tapped hole.

Havingthusl described my invention, I claim as new and desire to secure by Letters Patent Y 1. A testing apparatus'foruse in connection with avlluid-discharge device comprising indicating means, and portions applicable to the discharge device and having passages to the discharge device according to which one of the portions of the apparatus is applied to the discharge device whereby fluid pressures'of different characters maybe measured.

2; Altestin apparatus for use in connection with a uid-discharge device comprising indicating means, a body portion having passages leading to the. indicating means, means for holding the body portion with the inlet-opening of one passage within the discharge device, and means for positioning said' body portion-with the inlet-opening of another passage opposite the open end of the discharge devi ce.- 3. A testing apparatus for use in connection With a fluid-dischargedev-ice comprising indicating means, a body portion having passages .leading to the indicating means, means for confining the Huid at the discharge device to one assage, and means for positioning the bo y portion with the inlet-openying of a passage' opposite the open end of the discharge device.

4. A ltesting apparatus for use connection with the discharge-nozzles or thelike comprising indicating means to which lead a plurality of passages, means associated with one passage for closing the nozzle to direct fluid pressure into said assage, andy means for fixing the relation ci? the opening of another passage with respect to the nozzle..

5. A testing device for use in connection with discharge nozzles or the like comprising indicating means having a passage leading thereto, means Jfor positioning the inlet-opening of the passage at a point removed from the nozzle, whereby free fluidflow from said nozzle 4is permitted, and a shield extending over boththe extremity of the nozzle and fthe-inlet-opening of the passage.

6. A testing apparatus .for use in connection with dischargenozzles or the likel comprising indicating means having a passage leading thereto, means for iixing the relation of the inlet-opening of the passage to the open end of the nozzle, and a shield extending over both the extremity of the nozzle and the inlet-opening of the passage and being curved over the stream issuing from the nozzle. v

7.. A testing apparatus for use in connection' with discharge-nozzlesor the like comprising indicating means having a passage leading thereto, means for fixing the relation of the inlet-opening of the passage to the open end of the nozzle, and adivider situated adjacent to the inlet-opening of the passage and having a reduced edge turned toward the nozzle.

S. Atesting apparatus comprising body portion, a tube: extending'v outwardly from, and then back toward said body portion, and

a gage connected with the tube through the body portion. y

9. A testing apparatus comprising a body portion adaptedy to .engage'the exterior of a nozzle, 'a tube extending outwardly from said body portion, and having an enlargementI adapted to be received by and to close the' interior o' said nozzle and a gage connected with thetube through the body portion.

10. A testing apparatus comprising a body portion, a tubeextending outwardly from said body portion, a sectional bushing of yieldable material surrounding the tube, and' a gage connected with the tube through the body portion.- v

1 1. vA testing apparatus comprising a body portion, a tube .extending outwardly from said body portion, a sectional bushing of yieldable material surrounding the tube,

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means Afor preventing the rotation of the bushing on the tube, and a gage connected with the tube through the body portion.

12. A portable testing apparatus comprising a body provided with an indicator-passage and separate` inlet-passages. communilIO eating with the indicator-passage.4 a valve operable in the body for independently connecting either inlet-passage withl the indicator passage, means for .applying static fluid pressure to one of lthe inlet-passages, f

and neans for applying dynamic Illuid pressure to'another inlet-passage.

y 13. A portable testing apparatus .comprising a body provided with an indicator-pas- -sage and separate inlet-passages communicatingrwith the indicator-passage, meansfor applying static fluid pressure to ,one of the inlet-passages, means for applying dynamic iluid ress ure toanotherinlet-passage, and a shield) extending from the body'over the dynamic-pressure-applying means. v

14. A ortablle testing apparatus comprisy provided with` an indicator-passage aud separate inlet-passages communicating with the indicator-passage, means for applying the static Huid pressure to one of the inlet-passages means for applying dynamic luid pressure to another inlet-passage,

and a shieldextending from the body overthe dynamic pressure applying means and at the side toward the indicator-passage.

15., A portable testing apparatus comprising a body providedwith an indicator-passage and an inlet-passagel and having a supporting-portion adapted to engage a nozzle, and a conduit leading from the inlet-passage and opening toward the supporting-portion.

16. A testing apparatus ror use in connection with a fluid-discharge device comprising portions applicable to the discharge device and having passages maintained in di'erent relations to said device by the contact of the apparatus therewith, and a gage to which the passages lead and which is provided with a plurality oi' scales including'one indicating iuid pressure and one indicating the quantity orv fluid discharged.

17. A portable testing apparatus comprising a body provided with an indicator-passage and an inlet-passagepand having a supporting-portion adapted to engage a nozzle, a conduit leading from the inlet-passage and opening toward the supporting-portion, and a shield extending over the conduit-opening.

18. A portable testing apparatus comprising a body provided with an indicator-passageV and an inlet-passage and lhaving a curved supporting-portion, a conduit leading from the inlet-passage and opening toward said supporting-portion, and a shield extending from and generally conforming to the curve of the supporting-portion and projecting over the conduit-opening.

19. A portable` testing apparatus comprising a body provided with an indicator-passage and an inlet-passage and having a supporting-portion, a conduit leading from the inlet-passage, and a divider situated adjacent to the conduit and having a reduced edge extending toward the supporting-portion.

20. A portable testing apparatus comprising a body provided with an indicator-passage and an inlet-passage and having a supporting-portion, a conduit leading from the inlet-passage, and a divider extending upon .opposite sides of the conduit and having its outer edges reduced,` one of said edges being upon the side toward the supporting-portion.

vSigned by me at Boston, Massachusetts, this 21st day of September, 1905.

FRANK B. SANBORN. Witnesses:

C. H. PHINNEY, GARDNER C. ANTHONY. 

